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ICM_vol1_titelei 26.3.2007 16:17 Uhr Seite 1 S E M M E S E MS ICM_vol1_titelei 26.3.2007 16:17 Uhr Seite 2 ICM_vol1_titelei 26.3.2007 16:17 Uhr Seite 3 Proceedings of the International Congress of Mathematicians Madrid, August 22–30, 2006 VOLUME I Plenary Lectures and Ceremonies Marta Sanz-Solé Javier Soria Juan Luis Varona Joan Verdera Editors S E M M uropean athematical ociety E S E M S ICM_vol1_titelei 26.3.2007 16:17 Uhr Seite 4 Editors: Marta Sanz-Solé Juan Luis Varona Facultat de Matemàtiques Departamento de Matemáticas y Computación Universitat de Barcelona Universidad de La Rioja Gran Via 585 Edificio J. L. Vives 08007 Barcelona Calle Luis de Ulloa s/n Spain 26004 Logroño Spain Javier Soria Departament de Matemàtica Aplicada i Anàlisi Facultat de Matemàtiques Joan Verdera Universitat de Barcelona Departament de Matemàtiques Gran Via 585 Universitat Autònoma de Barcelona 08007 Barcelona 08193 Bellaterra (Barcelona) Spain Spain 2000 Mathematics Subject Classification: 00Bxx ISBN 978-3-03719-022-7 Bibliographic information published by Die Deutsche Bibliothek The Swiss National Library lists this publication in The Swiss Book, the Swiss national bibliography, and the detailed bibliographic data are available on the Internet at http://www.helveticat.ch. This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, re-use of illustrations, recitation, broadcasting, reproduction on microfilms or in other ways, and storage in data banks. For any kind of use permission of the copyright owner must be obtained. ©2007 European Mathematical Society Contact address: European Mathematical Society Publishing House Seminar for Applied Mathematics ETH-Zentrum FLI C4 CH-8092 Zürich Switzerland Phone: +41 (0)44 632 34 36 Email: [email protected] Homepage: www.ems-ph.org Typeset using the author’s TEX files: I. Zimmermann, Freiburg Printed in Germany 9 8 7 6 5 4 3 2 1 Preface When we started planning the edition of the Proceedings of the International Congress of Mathematicians 2006 (ICM2006), we considered the possibility of publishing only an electronic version. However, it is pretty difficult to break traditions, particularly for an activity like the ICM with an existence of more than a hundred years. Thus, we finally decided to mimic the model that started in Berlin 98: to publish both, a printed and an electronic version of the Proceedings. However, you may notice the influence of living the Internet Era, where length of files is not really a big issue, by the number of pages, altogether almost 4400, probably a record for the history of ICMs. These Proceedings consist of three volumes. Volume I is divided into four parts. The first one gathers the speeches at the opening ceremony including the presentation of the Fields Medals, the Rolf Nevanlinna Prize and the newly awarded Gauss Prize for Applications of Mathematics as well as the speeches at the closing ceremony. It also contains information about the organization of the Congress, the committees, sponsors and other collaborators. The second part contains the traditional laudationes for the prizes, that is, an extensive presentation of the work of the awardees. The third part is the main body of the volume and consists of the articles written by the plenary lecturers of the Congress. One of the characteristics of this ICM has been the large number of diverse activities accompanying day by day the program fixed by the IMU Scientific Program Committee. In the fourth part of the volume, you can find articles corresponding to some of them. Volumes II and III were printed before the Congress and distributed to the partici- pants in Madrid. They gather the articles written by the invited speakers in the different scientific sections of the Congress. The on-line version of these volumes is accessible at the address http://www. icm2006.org/proceedings We take this opportunity to express our thanks to the authors of the articles for their effort in the preparation of excellent contributions. We also would like to express our gratitude to the EMS Publishing House for the superb job in the edition of these Proceedings and all the printed material of the ICM2006. March 2007 Marta Sanz-Solé Javier Soria Juan Luis Varona Joan Verdera Contents Preface ................................................................. v Past congresses ......................................................... 1 Past Fields Medalists and Rolf Nevanlinna Prize Winners ................... 2 Organization of the Congress ............................................. 3 The committees of the Congress .......................................... 13 Other collaborators of the ICM2006 ....................................... 22 List of sponsors ......................................................... 23 Opening ceremony ...................................................... 25 Closing ceremony ....................................................... 45 The work of the Fields Medalists, the Rolf Nevanlinna Prize Winner and the Gauss Prize Winner ............................................ 53 Giovanni Felder The work of Andrei Okounkov ........................................ 55 John Lott The work of Grigory Perelman ........................................ 66 Charles Fefferman The work of Terence Tao .............................................. 78 Charles M. Newman The work of Wendelin Werner ......................................... 88 John Hopcroft The work of Jon Kleinberg ............................................ 97 Hans Föllmer On Kiyosi Itô’s work and its impact .................................... 109 Plenary Lectures Percy Deift Universality for mathematical and physical systems ..................... 125 Jean-Pierre Demailly Kähler manifolds and transcendental techniques in algebraic geometry .... 153 Ronald A. DeVore Optimal computation ................................................. 187 Yakov Eliashberg Symplectic field theory and its applications ............................. 217 viii Contents Étienne Ghys Knots and dynamics .................................................. 247 Henryk Iwaniec Prime numbers and L-functions ....................................... 279 Iain M. Johnstone High dimensional statistical inference and random matrices .............. 307 Kazuya Kato Iwasawa theory and generalizations .................................... 335 Robert V. Kohn Energy-driven pattern formation ....................................... 359 Ib Madsen Moduli spaces from a topological viewpoint ............................ 385 Arkadi Nemirovski Advances in convex optimization: conic programming ................... 413 Sorin Popa Deformation and rigidity for group actions and von Neumann algebras .... 445 Alfio Quarteroni Cardiovascular mathematics ........................................... 479 Oded Schramm Conformally invariant scaling limits: an overview and a collection of problems ......................................................... 513 Richard P. Stanley Increasing and decreasing subsequences and their variants ............... 545 Terence Tao The dichotomy between structure and randomness, arithmetic progressions, and the primes ................................. 581 Juan Luis Vázquez Perspectives in nonlinear diffusion: between analysis, physics and geometry ........................................................ 609 Michèle Vergne Applications of equivariant cohomology ................................ 635 Avi Wigderson P , NP and mathematics – a computational complexity perspective ....... 665 Special activities John W. Morgan The Poincaré Conjecture .............................................. 713 Panel discussion organised by the European Mathematical Society Should mathematicians care about communicating to broad audiences? .... 737 Contents ix ICM 2006 Closing round table Are pure and applied mathematics drifting apart? ........................ 757 Cultural activities José M. Sánchez-Ron The road from Zurich (1897) to Madrid (2006) .......................... 777 List of participants ...................................................... 795 Participants by country .................................................. 830 Author index ............................................................ 831 Past congresses 1897 Zurich 1958 Edinburgh 1900 Paris 1962 Stockholm 1904 Heidelberg 1966 Moscow 1908 Rome 1970 Nice 1912 Cambridge, UK 1974 Vancouver 1920 Strasbourg 1978 Helsinki 1924 Toronto 1982 Warsaw (held in 1983) 1928 Bologna 1986 Berkeley 1932 Zurich 1990 Kyoto 1936 Oslo 1994 Zurich 1950 Cambridge, USA 1998 Berlin 1954 Amsterdam 2002 Beijing Madrid 2006 2 Past Fields Medalists and Rolf Nevanlinna Prize Winners Fields Medalists 1936 Lars V. Ahlfors 1978 Pierre R. Deligne Jesse Douglas Charles F. Fefferman Grigorii A. Margulis 1950 Laurent Schwartz Daniel G. Quillen Atle Selberg 1982 Alain Connes 1954 Kunihiko Kodaira William P. Thurston Jean-Pierre Serre Shing-Tung Yau 1958 Klaus F. Roth 1986 Simon K. Donaldson Rene Thom Gerd Faltings Michael H. Freedman 1962 Lars Hörmander John W. Milnor 1990 Vladimir G. Drinfeld Vaughan F. R. Jones 1966 Michael F. Atiyah Shigefumi Mori Paul J. Cohen Edward Witten Alexander Grothendieck Steve Smale 1994 Jean Bourgain Pierre-Louis Lions 1970 Alan Baker Jean-Christophe Yoccoz Heisuke Hironaka Sergei P. Novikov 1998 Richard E. Borcherds John G. Thompson William T. Gowers Maxim Kontsevich 1974 Enrico Bombieri Curtis T. McMullen David B. Mumford 2002 Laurent Lafforgue Vladimir